Java Reference
In-Depth Information
nav.park=Ver estudiantes en el Parque
nav.admin=Administraci\u00f3n
admin.nav.main=P\u00e1gina principal de administraci\u00f3n
admin.nav.create_student=Crear un nuevo estudiante
admin.nav.edit_student=Editar informaci\u00f3n del estudiante
admin.nav.create_guardian=Crear un nuevo guardia
admin.nav.edit_guardian=Editar guardia
admin.nav.create_address=Crear una nueva direcci\u00f3n
admin.nav.edit_address=Editar direcci\u00f3n
admin.nav.activate_student=Activar estudiante
Character Encoding
A
character encoding
maps a character set to units of a specific width and defines byte
serialization and ordering rules. Many character sets have more than one encoding. For
example, Java programs can represent Japanese character sets using the
EUC-JP
or
Shift-JIS
encodings, among others. Each encoding has rules for representing and seri-
alizing a character set.
The ISO 8859 series defines 13 character encodings that can represent texts in dozens of
languages. Each ISO 8859 character encoding can have up to 256 characters. ISO-8859-1
(Latin-1) comprises the ASCII character set, characters with diacritics (accents, diaereses,
cedillas, circumflexes, and so on), and additional symbols.
UTF-8 (Unicode Transformation Format, 8-bit form) is a variable-width character encod-
ing that encodes 16-bit Unicode characters as one to four bytes. A byte in UTF-8 is equi-
valent to 7-bit ASCII if its high-order bit is zero; otherwise, the character comprises a
variable number of bytes.
UTF-8 is compatible with the majority of existing web content and provides access to
the Unicode character set. Current versions of browsers and email clients support UTF-8.
In addition, many new web standards specify UTF-8 as their character encoding. For ex-
ample, UTF-8 is one of the two required encodings for XML documents (the other is
UTF-16).
Web components usually use
PrintWriter
to produce responses;
PrintWriter
automatically encodes using ISO-8859-1. Servlets can also output binary data using
Out-
putStream
classes, which perform no encoding. An application that uses a character set
that cannot use the default encoding must explicitly set a different encoding.
